11212101012222 has 24 divisors (see below), whose sum is σ = 26501329665720. Its totient is φ = 3397606367280.

The previous prime is 11212101012193. The next prime is 11212101012223. The reversal of 11212101012222 is 22221010121211.

It is a super-2 number, since 2×11212101012222² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11212101012195 and 11212101012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212101012223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28313386197 + ... + 28313386592.

It is an arithmetic number, because the mean of its divisors is an integer number (1104222069405).

Almost surely, 2^{11212101012222} is an apocalyptic number.

11212101012222 is an abundant number, since it is smaller than the sum of its proper divisors (15289228653498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11212101012222 is a wasteful number, since it uses less digits than its factorization.

11212101012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56626772808 (or 56626772805 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11212101012222 its reverse (22221010121211), we get a palindrome (33433111133433).

The spelling of 11212101012222 in words is "eleven trillion, two hundred twelve billion, one hundred one million, twelve thousand, two hundred twenty-two".